Flower what is in my garden

I took this in bob light in my garden with my new Sigma 70-300m telephoto lens using the Macro capability. It is just a test of what this baby can do. at first I thought it was gonna be great. I still believe that for a budget lens it is great. However, it is not the quickest of lenses and boy it is loud. I had great difficulty in focussing on the subject, but this is my first time using the lens and come to think of it the first encounter with a telephoto of this distance, so I am hoping I get to grips with it and get better results soon. I just need the photographers of this world to hold metaphorical hands and pray for better light!